QwtText QwtTextScaleDraw::label(double value) const
{
const QwtScaleDiv scDiv = scaleDiv();
if (!scDiv.contains (value))
return QwtText();
QwtValueList lst = scDiv.ticks (QwtScaleDiv::MajorTick);
lst.pop_front();
lst.pop_back();
int index = lst.indexOf(value);
if (index >= 0 && index < (int)labels.count())
return QwtText(labels[index]);
else
return QwtText();
}
QwtText ScaleDraw::label(double value) const
{
switch (d_type){
case Numeric:
{
QLocale locale = ((Graph *)d_plot->parent())->multiLayer()->locale();
if (d_numeric_format == Superscripts){
QString txt = locale.toString(transformValue(value), 'e', d_prec);
QStringList list = txt.split("e", QString::SkipEmptyParts);
if (list[0].toDouble() == 0.0)
return QString("0");
QString s = list[1];
int l = s.length();
QChar sign = s[0];
s.remove (sign);
while (l>1 && s.startsWith ("0", false)){
s.remove ( 0, 1 );
l = s.length();
}
if (sign == '-')
s.prepend(sign);
if (list[0] == "1")
return QwtText("10<sup>" + s + "</sup>");
else
return QwtText(list[0] + "x10<sup>" + s + "</sup>");
} else
return QwtText(locale.toString(transformValue(value), d_fmt, d_prec));
break;
}
case Day:
{
int val = static_cast<int>(transformValue(value))%7;
if (val < 0)
val = 7 - abs(val);
else if (val == 0)
val = 7;
QString day;
switch(d_name_format){
case ShortName:
day = QDate::shortDayName (val);
break;
case LongName:
day = QDate::longDayName (val);
break;
case Initial:
day = (QDate::shortDayName (val)).left(1);
break;
}
return QwtText(day);
break;
}
case Month:
{
int val = static_cast<int>(transformValue(value))%12;
if (val < 0)
val = 12 - abs(val);
else if (val == 0)
val = 12;
QString day;
switch(d_name_format){
case ShortName:
day = QDate::shortMonthName (val);
break;
case LongName:
day = QDate::longMonthName (val);
break;
case Initial:
day = (QDate::shortMonthName (val)).left(1);
break;
}
return QwtText(day);
break;
}
case Time:
return QwtText(d_date_time_origin.time().addMSecs((int)value).toString(d_format_info));
break;
case Date:
return QwtText(d_date_time_origin.addSecs((int)value).toString(d_format_info));
break;
case ColHeader:
case Text:
{
const QwtScaleDiv scDiv = scaleDiv();
if (!scDiv.contains (value))
return QwtText();
QwtValueList ticks = scDiv.ticks (QwtScaleDiv::MajorTick);
double break_offset = 0;
ScaleEngine *se = (ScaleEngine *)d_plot->axisScaleEngine(axis());
/*QwtScaleEngine *qwtsc_engine=d_plot->axisScaleEngine(axis());
ScaleEngine *se =dynamic_cast<ScaleEngine*>(qwtsc_engine);
if(se!=NULL)
{*/
bool inverted = se->testAttribute(QwtScaleEngine::Inverted);
if(se->hasBreak()){
double lb = se->axisBreakLeft();
double rb = se->axisBreakRight();
if(inverted){
if (value <= lb){
int n_ticks = (int)ticks.count() - 1;
double val0 = ticks[0];
double val1 = ticks[n_ticks];
for (int i = 1; i < n_ticks; i++){
double aux = ticks[i];
if(aux >= rb && val0 > aux){
val0 = aux;
continue;
}
if(aux <= lb && val1 < aux)
val1 = aux;
}
break_offset = fabs(val1 - val0);
}
} else {
if (value >= rb){
double val0 = ticks[0];
for (int i = 1; i < (int)ticks.count(); i++){
double val = ticks[i];
if(val0 <= lb && val >= rb){
break_offset = fabs(val - val0);
break;
}
val0 = val;
}
}
}
}
double step = ticks[1] - ticks[0];
int index = static_cast<int>(ticks[0] + step*ticks.indexOf(value) - 1);
int offset = abs((int)floor(break_offset/step));
if (offset)
offset--;
if (step > 0)
index += offset;
else
index -= offset;
if (index >= 0 && index < (int)d_text_labels.count())
return QwtText(d_text_labels[index]);
else
return QwtText();
//}
break;
}
}
return QwtText();
}
QString ScaleDraw::labelString(double value) const
{
switch (d_type){
case Numeric:
{
QLocale locale = d_plot->locale();
if (d_plot->parent())
locale = d_plot->multiLayer()->locale();
if ((d_numeric_format == Superscripts)||(d_numeric_format == SuperscriptsGER)){
QString txt = locale.toString(transformValue(value), 'e', d_prec);
QStringList list = txt.split("e", QString::SkipEmptyParts);
if (list.isEmpty())
return QString::null;
if (list[0].toDouble() == 0.0)
return "0";
QString s = list[1];
int l = s.length();
QChar sign = s[0];
s.remove (sign);
while (l>1 && s.startsWith ("0", false)){
s.remove ( 0, 1 );
l = s.length();
}
if (sign == '-')
s.prepend(sign);
if (list[0] == "1")
return "10<sup>" + s + "</sup>";
else {
if (d_numeric_format == SuperscriptsGER)
return list[0] + "·10<sup>" + s + "</sup>";
else
return list[0] + QString(QChar(0x00D7)) + "10<sup>" + s + "</sup>";
}
} else if (d_numeric_format == Engineering){
QString eng_suff;
double new_value = value;
if(fabs(new_value) >= 1e18){
eng_suff = 'E';
new_value /= 1e18;
} else if(fabs(new_value) >= 1e15){
eng_suff = 'P';
new_value /= 1e15;
} else if(fabs(new_value) >= 1e12){
eng_suff = 'T';
new_value /= 1e12;
} else if(fabs(new_value) >= 1e9){
eng_suff = 'G';
new_value /= 1e9;
} else if(fabs(new_value) >= 1e6){
eng_suff = 'M';
new_value /= 1e6;
} else if(fabs(new_value) >= 1e3){
eng_suff = 'k';
new_value /= 1e3;
} else if(fabs(new_value) >= 1){
eng_suff = "";
new_value /= 1.0;
} else if(fabs(new_value) >= 1e-3){
eng_suff = 'm';
new_value /= 1e-3;
} else if(fabs(new_value) >= 1e-6){
eng_suff = 'µ';
new_value /= 1e-6;
} else if(fabs(new_value) >= 1e-9){
eng_suff = 'n';
new_value /= 1e-9;
} else if(fabs(new_value) >= 1e-12){
eng_suff = 'p';
new_value /= 1e-12;
} else if(fabs(new_value) >= 1e-15){
eng_suff = 'f';
new_value /= 1e-15;
} else {
eng_suff = 'a';
new_value /= 1e-18;
}
QString txt = locale.toString((new_value), 'f', d_prec);
if(txt.contains(QRegExp("^0[\\.,]?0*$")))
return "0";
return txt + eng_suff;
} else
return locale.toString(transformValue(value), d_fmt, d_prec);
break;
}
case Day:
{
int val = int(transformValue(value))%7;
if (val < 0)
val = 7 - abs(val);
else if (val == 0)
val = 7;
QString day;
switch(d_name_format){
case ShortName:
day = QDate::shortDayName (val);
break;
case LongName:
day = QDate::longDayName (val);
break;
case Initial:
day = (QDate::shortDayName (val)).left(1);
break;
}
return day;
break;
}
case Month:
{
int val = int(transformValue(value))%12;
if (val < 0)
val = 12 - abs(val);
else if (val == 0)
val = 12;
QString day;
switch(d_name_format){
case ShortName:
day = QDate::shortMonthName (val);
break;
case LongName:
day = QDate::longMonthName (val);
break;
case Initial:
day = (QDate::shortMonthName (val)).left(1);
break;
}
return day;
break;
}
case Time:
{
QTime time = Table::dateTime(value).time();
if (d_format_info == "M")
return QString::number(60*time.hour() + time.minute());
else if (d_format_info == "S")
return QString::number(3600*time.hour() + 60*time.minute() + time.second());
return time.toString(d_format_info);
break;
}
case Date:
return Table::dateTime(value).toString(d_format_info);
break;
case ColHeader:
case Text:
{
const QwtScaleDiv scDiv = scaleDiv();
if (!scDiv.contains (value) || floor(value) < value)
return QString::null;
QwtValueList ticks = scDiv.ticks (QwtScaleDiv::MajorTick);
double break_offset = 0;
ScaleEngine *se = (ScaleEngine *)d_plot->axisScaleEngine(axis());
bool inverted = se->testAttribute(QwtScaleEngine::Inverted);
if(se->hasBreak()){
double lb = se->axisBreakLeft();
double rb = se->axisBreakRight();
if(inverted){
if (value <= lb){
int n_ticks = (int)ticks.count() - 1;
double val0 = ticks[0];
double val1 = ticks[n_ticks];
for (int i = 1; i < n_ticks; i++){
double aux = ticks[i];
if(aux >= rb && val0 > aux){
val0 = aux;
continue;
}
if(aux <= lb && val1 < aux)
val1 = aux;
}
break_offset = fabs(val1 - val0);
}
} else {
if (value >= rb){
double val0 = ticks[0];
for (int i = 1; i < (int)ticks.count(); i++){
double val = ticks[i];
if(val0 <= lb && val >= rb){
break_offset = fabs(val - val0);
break;
}
val0 = val;
}
}
}
}
if (ticks.size() < 2)
return QString::null;
double step = ticks[1] - ticks[0];
int index = int(ticks[0] + step*ticks.indexOf(value) - 1);
int offset = abs((int)floor(break_offset/step));
if (offset)
offset--;
if (step > 0)
index += offset;
else
index -= offset;
if (index >= 0 && index < (int)d_text_labels.count())
return d_text_labels[index];
else
return QString::null;
break;
}
}
return QString::null;
}